chore(deps): update dependency com.mysql:mysql-connector-j to v8.4.0

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
com.mysql:mysql-connector-j (source)	8.3.0 -> 8.4.0

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Release Notes

mysql/mysql-connector-j (com.mysql:mysql-connector-j)

### [`v8.4.0`](https://togithub.com/mysql/mysql-connector-j/compare/8.3.0...8.4.0) [Compare Source](https://togithub.com/mysql/mysql-connector-j/compare/8.3.0...8.4.0)

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